Don't even bother worrying about getting Noldor until you can take out the enemy named Hero spawns (jumping into the fray with help from the factions helps), I'd also recommend you consider using some Qualis gems to get the legendary weapons instead, but that's up to you.
Once you can take out enough of those armies to get enough gems to get 60 noldor, you probably won't even need them... Until something bigger and nastier comes along!
If you can figure out the training field easteregg(all the info you need is in these forums) you get 20 noldor troops, 5 pendor knights, 100k, 200 renoun, a qualis gem, a baggage train.